AI agents generate code faster than humans can review it. That’s a problem. We’ve all seen the promise: “10x developer velocity with AI.” But when a whole team uses agents to sprint, you don’t just get 10x features—you get 10x integration chaos. The Concurrency Paradox is real: as velocity increases, coordination costs skyrocket. Without guardrails, agentic development becomes a “denial‑of‑service” attack on your own main branch. We’re moving from “agile chaos” to Spec‑Driven Development (SDD). It’s the only way to put guardrails on agentic speed. ...